Admin 630577cb98 rapier: restore simd-stable (vendor wide + safe_arch), retest vs box3d

Re-vendors wide 0.7 + safe_arch, restores the upstream simd-stable
wiring in rapier3d/parry3d manifests and the cfg-simd source, and drops
the added 'stripped build does not support SIMD' guards (upstream's
simd-vs-enhanced-determinism exclusivity guard kept).

Interleaved single-thread retest (min of 4): SIMD buys rapier 1.8-2.2x;
box3d vs rapier-simd is now near parity — large_pyramid 1579 vs 1638 ms,
joint_grid 957 vs 1008 ms (box3d ahead), many_pyramids 2389 vs 1970 ms
(rapier ahead). box3d README grid updated with the honest three-column
table; box3d keeps cross-arch determinism + zero deps at that speed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-07-05 14:17:26 +02:00

853 B

Raw Permalink Blame History

wide

A crate to help you go wide.

Specifically, this has portable "wide" data types that do their best to be SIMD when possible.

On x86, x86_64, wasm32 and aarch64 neon this is done with explicit intrinsic usage (via safe_arch), and on other architectures this is done by carefully writing functions so that LLVM hopefully does the right thing. When Rust stabilizes more explicit intrinsics then they can go into safe_arch and then they can get used here.

853 B Raw Permalink Blame History

wide

853 B

Raw Permalink Blame History